Title:
ELECTRONIC CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2017073945
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an electronic control device that is able to improve response to deceleration while maintaining accuracy in stopping a rotor at a target position.SOLUTION: This electronic control device comprises: a motor having a rotor that rotates by electrically conducting a plurality of electrical conduction phases; an encoder that outputs a pulse-like encoder signal in synchronization with the rotation of the rotor; a control section that controls on and off of electrical conduction to the electrical conduction phase on the basis of a change in encoder signal; and a speed range determination section that determines which speed range among an acceleration range, a constant speed range, and a deceleration range, rotation of the rotor falls in. If the rotor is in the deceleration range, the control section exerts control such that a phase relating to off-timing of electrical conduction to the electrical conduction phase is delayed with respect to a change point of an encoder signal, and thereby force acts in a direction opposite the rotating direction of the rotor.SELECTED DRAWING: Figure 4
Inventors:
TANAKA TAKAHIDE
SHIMIZU KENJI
SHIMIZU KENJI
Application Number:
JP2015201424A
Publication Date:
April 13, 2017
Filing Date:
October 09, 2015
Export Citation:
Assignee:
DENSO CORP
International Classes:
H02P6/06; H02P25/08
Domestic Patent References:
| JP2012090462A | 2012-05-10 | |||
| JP2012039784A | 2012-02-23 | |||
| JPS6335190A | 1988-02-15 | |||
| JP2013115843A | 2013-06-10 | |||
| JPH08168294A | 1996-06-25 |
Foreign References:
| US6002226A | 1999-12-14 |
Attorney, Agent or Firm:
Kazuyuki Yahagi
Taihei Nonobe
Takanori Kubo
Taihei Nonobe
Takanori Kubo
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